Novelis opens a huge new auto aluminum plant in upstate New York. As carmakers try to reach 54.5 mpg by 2025, they're shedding pounds with the metal -- check out the Audi A8 and Tesla Model S. Is the very mainstream Ford F-150 the next all-aluminum vehicle?

Mercedes-Benz has quietly prepared a BMW i3 fighter in the new B-Class Electric Drive, which will be fast, practical and on sale in the spring. "It will be at least as competitive as our competitors' models," says the company's R&D chief.

Terrafugia has signed on with equity crowdfunder Wefunder. The offering is hugely popular, but so far it's making peanuts. Regular investors like you and me can't get into the game yet, but it's coming.

General Motors needs to recoup some investment from its $1.2 billion plug-in hybrid, and that's why an upscale Cadillac version that doesn't cost a whole lot to build makes some sense. But will people buy it?

Chattanooga is proud of its record as a green city, and it it should be. But the hole in the sustainability doughnut is transportation--despite a downtown electric bus shuttle, visitors end up taking a lot of cabs. Needed: a better airport link.

Don't leave anything in your vehicle you don't want friends, relatives and casual aquaintances to see. They're going through the guns, the CDs, the photographs, the illegal substances, and even your pill bottles.